Drill
- Eldritch Abomination: Wherever it's from, it's not friendly
- Electromagnetic Ghosts: Acts a bit like one
- Energy Beings: Seems to have a particular affinity for electricity, and can only be seen in the infrared.
The Adults
Claire Bennigan
An FBI agent specializing in child psychology, Claire is introduced to Drill through Harper's case. From there, she becomes the most determined member of the investigation of and defence against whatever Drill is. Her son, Henry, is one of Drill's friends, and her husband, Sean, has been missing since a bizarre incident for the Air Force.
- The Hero
- It's Personal: Drill has been secretly talking to her son, as well.
- Mama Bear
Sean Bennigan
Volunteered for an Air Force mission when he found out about Claire and Wes' affair, and disappeared over Russia.
- Human Notepad: Wherever his tattoos have been coming from, they seem to be leading him to wherever Drill will go next.
- Identity Amnesia: Woke up in the desert with no memory. Drill gives him back to himself after the Reactor.
Wes Lawrence
Another FBI agent working against Drill, his daughter Minx has been playing with Drill.
- The McCoy: Advising Winters, vs Frommer's Spock.
Lena Lawrence
Wes' wife and Minx' mother. Their marriage has been strained since his affair.
- Mama Bear: Will do anything to protect Minx.
- Killed Off for Real: By Drill
Jessup Rollins
Claire's partner in the FBI.
- Agent Scully: Initially, understandably reticent to believe that Drill is a supernatural extraterrestrial.
- Reasonable Authority Figure: Generally by the book, but draws a firm line at mistreating children.
Dr. Maria Benavidez
After being kidnapped by an amnesiac patient, Dr. Benavidez becomes the team's medical advisor.
"Where I'm from, when people are rounded up-"
"This isn't like that."
"Isn't it?"
- Killed Off for Real: By Drill's avatar
- Not That Kind of Doctor: Yes, she's a medical doctor, and yes, she will help, but no, she is not a pediatrician.
President Winters
- The Kirk: Not a major character, but makes executive decisions between emotional and utilitarian advisors.
Secretary of Defense Frommer
- The Spock: Between Wes and Winters, is the most ruthless.
Daniel Goetz
A strange man who has been keeping tabs on families Drill has been in contact with
The Kids
- Children Are Special: Drill can't talk to anyone who has "changed" - presumably, gone through puberty.
- From the Mouths of Babes: Nearly everything we know about Drill has been translated through their eyes.
- Innocence Lost: Unfortunately, undergoing this trauma will have a profound impact on all the children involved.
Harper Weil
Drill's first playmate we meet. As part of their game, she drops her mother out of a treehouse, putting her in a coma.
- Treehouse of Fun: No.
Minx Lawrence
Wes and Lena's daughter, Minx has had a hard enough time watching her parents fight, even before Drill came to play. She made the deal that, if she won the game, her parents would love each other again.
Henry Bennigan
Claire and Sean's son. In exchange for playing with Drill, he wanted his dad to come home.
- Littlest Cancer Patient: ... until Drill gives him back his hearing, after a fever Deafened him.
